During the Sassanid era, the most important medical center in the world was established in Jundishapur. Many, including Arabs, used the experience of Iranian medicine. The Arabs learned some sciences from the Iranians, including surgery, veterinary medicine, and kahali. They learned medicine from the Iranians in three ways: first, through Jundishapur University, through people like Harith Bunkoldeh and Nizrbanharith, who developed medical knowledge among the Arabs. Second, through the translation of Pahlavi books; Hirah, Yemen, Hejaz, some of the inhabitants of which were Zoroastrians and were familiar with the medical teachings of this religion. The present article tries to answer the question: What was the role of Jundishapur University in transferring medical knowledge and skills to Hejaz with a descriptive-analytical approach and with the aim of explaining the Iranian medical heritage as part of the scientific identity of this nation?